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The title of this 2-hour Columbo entry is one of the most grievous puns ever perpetrated on the public. The "crown" in question is a gold one, placed in the murder victim's tooth by dentist James Read. Seeking redress against his wife's lover, Read has administered a slow-acting and untraceable poison in the victim's dental crown. Had not Columbo been assigned to the case, Read might have gotten away as clean as a hound's tooth (sorry!) Nancy Walker and Dick Sargent make cameo appearances in Uneasy Lies the Crown, which originally aired April 28, 1990 on ABC's Saturday Mystery Movie series.